From 50ce870e5dc74279d9747413441fe4dd705a1f96 Mon Sep 17 00:00:00 2001
From: Loic Deridder <lderidde@fu-r3-p4.s19.be>
Date: Mon, 17 Feb 2025 15:38:21 +0100
Subject: [PATCH] expander et signal

---
 srcs/execution/exec.c       |  2 ++
 srcs/execution/exec_subsh.c |  2 ++
 srcs/expander/expand_var.c  | 28 ++++++++++++++++++++++++++++
 srcs/main.c                 | 21 +++++++++++++++++----
 4 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/srcs/execution/exec.c b/srcs/execution/exec.c
index 79403d5..6adb188 100644
--- a/srcs/execution/exec.c
+++ b/srcs/execution/exec.c
@@ -43,5 +43,7 @@ int	execute_command(t_ast_n *node)
 		node->msh->ex_code = exec_subsh(node->left);
 	if (node->state == _CMD)
 		reset_redir(node);
+	if (node->state == _CMD)
+		set_var_env("_", node->args[count_args(node->args) - 1], node->msh);
 	return (node->msh->ex_code);
 }
diff --git a/srcs/execution/exec_subsh.c b/srcs/execution/exec_subsh.c
index eb7f721..b881d66 100644
--- a/srcs/execution/exec_subsh.c
+++ b/srcs/execution/exec_subsh.c
@@ -67,6 +67,8 @@ int	execute_shcommand(t_ast_n *node)
 		node->msh->ex_code = exec_subsh(node->left);
 	if (node->state == _CMD)
 		reset_redir(node);
+	if (node->state == _CMD)
+		set_var_env("_", node->args[count_args(node->args) - 1], node->msh);
 	return (node->msh->ex_code);
 }
 
diff --git a/srcs/expander/expand_var.c b/srcs/expander/expand_var.c
index 3ced7d1..5ffb482 100644
--- a/srcs/expander/expand_var.c
+++ b/srcs/expander/expand_var.c
@@ -47,6 +47,32 @@ static char	*extract_env(char *str, char **envp)
 	return (var);
 }
 
+int	expand_exit(t_ast_n *node, int j, int i)
+{
+	int		k;
+	char	*new;
+	char	*ret;
+	int		len;
+
+	k = -1;
+	if (node->args[j][i + 1] && node->args[j][i + 1] == '?')
+	{
+		len = ft_strlen(ft_itoa(node->msh->ex_code));
+		new = ft_calloc(ft_strlen(node->args[j]) + len + 1, 1);
+		if (!new)
+			return (0);
+		ret = new;
+		while (++k < i)
+			*new++ = node->args[j][k];
+		ft_strlcat(new, ft_itoa(node->msh->ex_code), -1);
+		ft_strlcat(new, &node->args[j][i + 2], -1);
+		ft_free(&node->args[j]);
+		node->args[j] = ret;
+		return (1);
+	}
+	return (0);
+}
+
 void	expander_var(t_ast_n *nd, int j, int i)
 {
 	char	*new;
@@ -56,6 +82,8 @@ void	expander_var(t_ast_n *nd, int j, int i)
 	int		l;
 
 	k = i;
+	if (expand_exit(nd, j , i))
+		return ;
 	new = ft_calloc(ft_strlen(nd->args[j]) + get_var_len(nd, j, &k), 1);
 	if (!new)
 		return ;
diff --git a/srcs/main.c b/srcs/main.c
index 6750cef..874fbda 100644
--- a/srcs/main.c
+++ b/srcs/main.c
@@ -13,7 +13,9 @@
 #include "../includes/minishell.h"
 #include <readline/history.h>
 #include <readline/readline.h>
+#include <stdlib.h>
 #include <termios.h>
+#include <time.h>
 
 int	g_sig = 0;
 
@@ -36,10 +38,21 @@ static void	add_prevhistory(t_msh *msh)
 void	handle_sigint(int sig)
 {
 	(void)sig;
-	write(2, "\n\n", 2);
-	rl_on_new_line();
-	rl_replace_line("", 0);
-	rl_redisplay();
+	int	status;
+	pid_t	pid;
+
+	pid = waitpid(-1, &status, 0);
+	if (pid > 0 && (WIFSIGNALED(status) && WTERMSIG(status) == SIGINT))
+	{
+		write(2, "\n", 2);
+	}
+	else
+	{
+		write(2, "\n\n", 2);
+		rl_on_new_line();
+		rl_replace_line("", 0);
+		rl_redisplay();
+	}
 	g_sig = sig;
 }